Sam and Peter do tend to have a lot in common it's kind of interesting to see them getting along since Dean and Jess didn't. At least they had each other even if it was just for a little bit at that point in their lives. Nice fic :)

Dude you totally have to make an X-over fic from this!
It could be that when Peter teleported them it wasn't into past but a paralel dimension(also Sam got massages from Dean and if he got back before Dean could call him it would distrub the timeline)
(If this is a paralel universe then there has be two Peters and Sams since without the phone they wouldn't talk with each other and things wouldn't lead to Peter teleporting them while drunk)

This is actually completely brilliant. I LOVE IT.
This is the first Supernatural/Heroes crossover that I've ever read, and it's perfect! You are really talented, and write things exactly the way they should be. Excellent job :D